How To Clean A 5.45×39 AR-15 After Shooting Corrosive Ammo (7N6)

I've recently built an AR in 5.45×39 and it short strokes without even touching the next round's rim. Has this happened to you?

Still a relevant video today. Lots of people reloading primers with the current shortages, myself included

Still have the AR?

Excellent job, very insightful video!

The "Moose Milk" =Ballistol/ Water mix at the range is a good smart idea.

Looks like the same type of cleaning method as used for cleaning Black Powder arms!

This is why i would never buy a used ak74

Hi
I really like your videos! I have a question. I’m wondering if you can answer it . How hard is it to get a hold of a S&W AR chambered in 5.45? Thank you…

Can you use a regular 556 low profile gas block to put a free float on this ?

Man this brings back memories. When the 7n6 got banned I retired and ultimately parted out my 5.45 AR after about 7,500 rounds. I have absolutely cleaned it in the shower. I never did more than shake the excess Ballistol pre-mix out before reassembly

What kind of bcg is that

When you threw the firing pin retaining pin I almost screamed lol.

I am debating on wether to do this conversion for my ar -15. With the hysteria over .223 I think it would be a good Idea. Has their been any availability issues for the 5.45×39 round? is the nickel boron bcg nessecary?

I figured you'd have a couple 5.45 piston uppers to beat up on as well. So have you ever tried the huldra 5.45 upper? Would love your word on that I don't believe everything I hear but you keep it simple and I weigh heavily your opinion. Great vids great info, as always, thank you mr.gunsgear.

you still run this setup or no?

After doing a lot of research I keep hearing conflicting stories as far as weather to use water or not. Some say water doesn't remove the salt and only promotes corrosion. Some videos I have seen just advise of cleaning like you would after using non corrosive ammo as some have been doing this for 15 years+ with no problems.

Bah. I throw mine in the dishwasher with some Jet Dry.

What pin retainers are on this weapon?

You put text in the video that said not to use Rem Oil, just curious why not? Is it because of the teflon in it – that's what I've read and heard about on forums… Thanks in advance

what about the salts that are trapped under the powder residue and jacket residue? after you clean you should flush again with the ballistol/water mixture then dry and oil.

Rubbing Alcohol – A nice alternative if you don't have compressed air.  Alcohol (also serves as a solvent), evaporates quickly taking the water with it. 

Thanks again for another great video.   Didn't know I should clean it differently when shooting cheap corrosive ammo.   Appreciate you sharing your knowledge again.

So to clean the gas tube all you have to do is put hot water down it, the blow the water out with compressed air? Also does the compressed air blow all of the water out of the gas tube?

I've been shooting my excellent S&W MP15R for about 4 years and have thousands of 7N6 rounds through it with no corrosion problems, so far. I meticulously clean it, just like you do about once a year, and do a good quick clean with Windex after every shooting session. A suggestion: I have switched to an Otis rod made for the .17 rimfire, and  have found this is much easier to clean the bbl with than a .22 cal. rod. Nice video.

I almost wondered where the burst part of the function check was lol

Alright, I listened like 10 times and I can't hear what solution you use. It is a 1:5 mix of what???

really great video, I'm 95% done building my 545 AR & im grateful that you've made all these videos

MrGnG, I'm thinking of doing a 5.45 AR build using the Huldra complete upper. Can you elaborate on the ejection pattern of the 7n6 on the AR? I shoot lefty so I want to minimize casings coming back in my face and I wasn't sure if the deflector works well with the Russian ammo?

Side note, any advice on the huldra or Adams arms piston uppers?

Thanks!

Are you still using that gun oil/solvent mixture?  A lot of debate on forums about using motor oil in guns.

I have not seen any mention of the lacquer coating on the 7N6.  You very well know the urban legends about the old lacquer coated import .223 ammo "destroying every rifle they ever ran in".  What are you thoughts/care taken to avoid "lacquer catastrophes"?

Great video keep up the good work

That would be pretty sweet. Been stocking up on 5.45×39 surplus and will be doing a build very soon. Just waiting for aim to get the complete uppers back in stock. I really enjoy your video's.

Could you do a review on your 5.45×39 AR's? Would really like to see what you used and how things are holding up shooting corrosive ammunition.

hey, great vids!  I have a piston AR in 5.56 that I love, and want to take advantage of the 15 to 16 cent 5.45 ammo out there, even though we reload 5.56 for about 25 cents each.  I would like to stay piston operated, do you have any opinion about the adams arms huldra 5.45  versus the smith & wesson m&p?  or other ar type you like?  or do you think AK-74 is a better way to go?  haha million q's… thank you!

Dude! a couple Veprs and  few Sig556R's are all I have ever owned and know. Honestly can say i dont know jack shit about an AR. Somewhat kinda but not really like sigR.. but getting my AA moe 5.45×39 upper in this week to go with a LMT lower i got in the Obama gun scare. I appreciate your work man, very helpful,great vid. I will be watching this again step by step after the range. Ride On and God Bless

Just a question, what brand of an upper receiver are you using?? And what bolt carrier?? Thanks!

I had a pretty in depth conversation with an engineer at FN and he explained (in way more detail than was necessary) why there's no need to ever actually run anything through a gas tube. I've stuck with that for a while.

For the gas tubes Ive always used pipe cleaners.

No they're different.

Well, even then, there's non-corrosive ammo that's cheaper than the .223 offering, like Wolf and Golden Tiger.

The bcg 556 are they the same 545 bcg? Thanks!